Finding the Fourth Proportional to 90,373, 124,705.80 and 52,136.02

Step by Step Solution

1. Step 1: Write the proportion equation
   90,373 : 124,705.80 = 52,136.02 : x
2. Step 2: Convert to fraction form
   90,373/124,705.80 = 52,136.02/x
3. Step 3: Cross multiply
   90,373x = 124,705.80 × 52,136.02
4. Step 4: Simplify right side
   90,373x = 6,501,664,082.92
5. Step 5: Solve for x
   x = 6,501,664,082.92/90,373
6. Step 6: Final answer
   x = 71,942.55